Chernger, your changer.

About Us
We possess the experience with solving AOI challenges

"Chernger Tech Co., Ltd was founded in 1999. To produce high speed and accuracy CCD automated optical inspections (AOI) is our goal, and we are constantly improving our skills and our products as well.

Surface defect inspection is the most hard part in inspection. However, we had developed unique optical field and algorithm to overcome the difficulties of inspection. Besides, with the continual improvement of technologies, it is possible to inspect a variety of surface defect at high speed. As a result, we develop 5 to 10 professional CCD AOI system every year to fulfill the requirements of defect inspection in domestic and foreign markets."


Customise the best AOI Machine for you

Customised AOI Machines

With the emphasis on productivity improvement, we help our customers to apply AOI system/ equipment to their production lines. We have varieties of inspection experience in different products. For example, gears, automotive parts, IC carrier tapes, blood glucose test strips, PCB, semiconductor and so on.

AOI Machine Modification

We have contributed to AOI industry for more than 20 years, and we developed a wide range of automatic inspection machines and measurement kits. Besides, we offer assistance to customers who need to add more features to their AOI machines. We have successfully solved many difficult cases of visual measurement and defect inspection so far.

Rental Equipment

We offer different inspection modules for production factories and regular update.


Due to internationalisation, we have received many orders from overseas. We also obtained affirmations from our international customers because of our achievements of product quality and precision. We contribute to creating cross-boundary contacts to provide assistance for our customers and pursuing progress on AOI field .